CVE-2020-8247 : Vulnerability Insights and Analysis

Citrix ADC and Citrix Gateway 13.0 before 13.0-64.35, Citrix ADC and NetScaler Gateway 12.1 before 12.1-58.15, Citrix ADC 12.1-FIPS before 12.1-55.187, Citrix ADC and NetScaler Gateway 12.0, Citrix ADC and NetScaler Gateway 11.1 before 11.1-65.12, Citrix SD-WAN WANOP 11.2 before 11.2.1a, Citrix SD-WAN WANOP 11.1 before 11.1.2a, Citrix SD-WAN WANOP 11.0 before 11.0.3f, Citrix SD-WAN WANOP 10.2 before 10.2.7b are vulnerable to escalation of privileges on the management interface.

Understanding CVE-2020-8247

This CVE involves improper privilege management in Citrix products, leading to a privilege escalation risk.

What is CVE-2020-8247?

CVE-2020-8247 is a vulnerability that affects various versions of Citrix ADC, Citrix Gateway, and Citrix SDWAN WAN-OP, allowing unauthorized escalation of privileges on the management interface.

The Impact of CVE-2020-8247

The vulnerability can be exploited by attackers to gain elevated privileges on the affected systems, potentially leading to unauthorized access and control.

Technical Details of CVE-2020-8247

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability stems from improper privilege management (CWE-269) within the affected Citrix products, enabling attackers to escalate their privileges on the management interface.

Affected Systems and Versions

Citrix ADC and Citrix Gateway 13.0 before 13.0-64.35
Citrix ADC and NetScaler Gateway 12.1 before 12.1-58.15
Citrix ADC 12.1-FIPS before 12.1-55.187
Citrix ADC and NetScaler Gateway 12.0
Citrix ADC and NetScaler Gateway 11.1 before 11.1-65.12
Citrix SD-WAN WANOP 11.2 before 11.2.1a
Citrix SD-WAN WANOP 11.1 before 11.1.2a
Citrix SD-WAN WANOP 11.0 before 11.0.3f
Citrix SD-WAN WANOP 10.2 before 10.2.7b

Exploitation Mechanism

The vulnerability allows attackers to exploit the privilege management flaw to gain unauthorized access to the management interface and potentially execute malicious actions.

Mitigation and Prevention

Protecting systems from CVE-2020-8247 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Citrix to fix the vulnerability.
Monitor system logs for any suspicious activities indicating privilege escalation attempts.
Restrict access to the management interface to authorized personnel only.

Long-Term Security Practices

Regularly update and patch Citrix products to address security vulnerabilities promptly.
Conduct security assessments and audits to identify and mitigate potential risks proactively.

Patching and Updates

Citrix has released patches to address the vulnerability. Ensure all affected systems are updated with the latest security fixes.